Concrete insert



Oct. 14, 1924. 1,511,542

C. C. TOMKINSON CONCRETE INSERT Filed Jan. 27, 1921 (fiar/Ps Cjam/(7)0072 Patented @ct. 14, T1924.

TED STATES P anew AFTENT OFFICE.

CHARLES C. TOMKINSON, 03F PLAINFIELD, JERSEY, ASSIGNOR T0 3'. EDWARDOGDEN, 0F MOUNTAINVILLE, NEW YORK.

CUNGRETE INSERT.

To all whom it may concern:

Be it known that T, CHARLES C. TOMKIN- soN, a citizen of the UnitedStates, and a resident of Plainfield, county of Union, and State of NewJersey, have lnvented certain new and useful Improvements in ConcreteInserts, of which the following is a specification.

This invention relates to concrete inserts adapted to form supports foranchoring means such as nuts or headed bolts and it is an object of theinvention to form the inserts of sheet metal in such manner that theymay be cheaply manufactured and easily assembled.

With the foregoing and other objects in view, the invention consists inthe novel construction, combination and arrangement of parts to behereinafter specifically described in connection with the accompanyingdrawings forming part of this specifica-' tion, reference being had,however, to the appended claims for thescope of the invention.

Referring now to the drawings, Fig. 1 is a perspective view of oneembodiment of my invention showing 'a nut within the insert, and

Fig. 2 is a side elevation thereof showing the nut within the insert asoperatively conneoted to the end of a bolt or round bar.

Fi 3 is a view similar to Fig. 1 but showing t e insert as lon enough toprovide for the entry and slidab e adjustment of an an chor element.

Fig. 4 is a perspective view of a modified form of the invention.

Fig. 5 is a side elevation of the same and Fig. 6 is a longitudinalsectional elevato overlie the slot S to permit the entry of tion of; theanchor shown in Fi 3.

Like characters of reference disignate like parts throughout the severalviews.

The insert is made up of two members 10 and 11. The member 10 isU-shaped and has a restricted portion 12 whereby ledges 13 are formed.These ledges 13 form abutments for preventin displacement in onediremtion of the anc or element shown in Fig. 1, as a nut N, and alsoserve as means for retaining the compartment-forming member 11 incombinative association with the other member 10. The member 11preferably takes the form of a U-shaped element of a height suficient toform a pocket into .justment of the anchors.

which the end of a bolt B cooperating with the nut N may project.

The member 11 at. its terminals has wings 14 which engage under theledges 13 thus preventing separation of the members 10 and 11 in onedirection. For securing the said members against movement in anotherdirection, flanges 15 extending from the terminals of the member 11 areprovided. These flanges overlap the adjacent edges of the member 10 andare then bent outwardly at right angles to form nailing tabs 16 havingnotches 17 for the reception of nails or other means for securing theinsert to a mold or other fixed support while the concrete is beingpoured.

The member 10 has its terminals flared outwardly to form wings 18terminating in out-turned flanges 18. bodied in concrete ofier greatresistance to the withdrawal of the insert.

As shown in Fig. 3, the insert may be of sufficient length to allow forthe slidable ad- Tn order to provide for the entry or removal of a bolthead or other .headed anchor, the slot is widened to form a gateway. Thedistance between the ends 19 of the flanges of the slot S and theopposite end 19 of the insert is preferably less than the depth orthickness of the anchor so as to require tilting of the same in order topermit its passage through the gateway. This arrangement insures thatthe anchor will not be displaced from its compartment so long as it isin normal position even though it is at the extreme end of the slotsince part of the anchor will overlie the edge- 19. When the anchor is abolt the shank thereof must be tilted so as the head through thegateway, the head being rocked and slid on the end edges 19.

The insert in Fig. 3 is shown as having the compartment-forming U-member 11 as of less height than in the previously described form. Thisis for the reason that no provision need be made for athrough-thenut-projecting end of the shank of the bolt. The member iswide enough so that. its top edges will abut the ledges 13 instead ofmerely having a hooked engagement therewith as in Fig. 1, and is, inefiect, an inverted drawer held from upward displacement by the ledges13.

These when emterminalsof the member 11' and bending the same over ontothe bottom of the U member 10 through notches 21 in the side ed es ofsaid member. These edges are notche sufiiciently deep to permit nails orsecuring means to be used in securing the insert to a mold or otherfixed support while the concrete is being poured.

While I have described the invention in great detail, I desire it to beunderstood that I intend no limitations other than such as'm'ay beimposed by the appended claims.

What I claim is: 1. In a concrete insert, the combination of asubstantially U-shaped member having inwardly projecting ledgesextending lengthwise of the same to form longitudinally extensiveshoulders and a second U-shaped member oppositely disposed within thefirst to form a compartment and having "its ends engaged beneath theshoulders provided by the ledges so as to maintain the ends of thecompartment securely closed.

.2. In a concrete insert, the combination of a U-shaped member havingthe sides of the same constricted to provide a pair of inwardlyprojecting ledges and a second U- shaped memberoppositely disposedwithin the first to form a compartment and havin its ends engagedbeneath the ledges forum?! by the constricted portions of the sides,whereby said ends of the second member are confined in theircompartment-forming relation with the first member.

In witness .whereof, I have hereunto set my hand this 17th day ofJanuary, 1921.

CHARLES C. TOMKINSON.

